Entities mentioned:
- Nazgul (the dog): Enthusiasm, Curiosity, Loyalty
- Olympic athletes: Competitive spirit, Determination, Professional pride
- Tena Hadzic: Competitive spirit, Self-preservation, Professional pride
- Event officials: Duty, Control, Professional pride

Article Assessment:
Credibility Score: 85/100
Bias Rating: 50/100 (Center)
Sentiment Score: 70/100
Authoritarianism Risk: 20/100 (Strongly Democratic)

Bias Analysis:
The article presents a balanced view of the incident, including quotes from affected athletes and officials. It doesn't lean towards sensationalism or downplaying the event, maintaining a neutral stance.

Key metric: Olympic Integrity and Safety

Let me tell you something - this is RIDICULOUS! We've got a real game-changer here, folks! Just when you thought the women's team sprint cross-country race couldn't get any more intense, we've got an unexpected player joining the field! This four-legged competitor, Nazgul, came out of nowhere to make a last-minute dash for glory! Talk about stepping up to the plate in the fourth quarter! But let's not forget the real champions here - these world-class athletes who had to keep their championship mentality intact while facing this furry interloper. It's like they're playing on a whole new field now, having to dodge not just their human rivals but canine ones too! This is the kind of curveball that separates the pros from the amateurs, folks. I'm telling you right now, this is the kind of mental toughness that defines Olympic greatness!